17-4PH STAINLESS STEEL
What is 17-4PH STAINLESS STEEL?
17-4PH (also known as UNS S17400) is a precipitation hardening stainless steel that offers a unique combination of high strength, moderate corrosion resistance, and excellent toughness. This martensitic grade is strengthened through a heat treatment process called precipitation hardening, making it ideal for high-stress and precision applications.
Used widely in aerospace, nuclear energy, petrochemical, and medical industries, 17-4PH stainless steel is known for maintaining mechanical properties up to 600°F (316°C) and offering good corrosion resistance in harsh environments.
Key Properties
and Advantages
1. High Strength & Hardability
17-4PH delivers excellent tensile and yield strength, especially after heat treatment. It allows for higher load-bearing performance and dimensional stability.
2. Good Corrosion Resistance
It offers corrosion resistance similar to Type 304 stainless steel, making it suitable for applications in mildly corrosive environments like chemical plants, food processing, and marine components.
3. Machinability & Weldability
17-4PH is readily machinable in its solution-treated condition and can be welded using most standard methods, making it versatile in production.
4. Stable at Elevated Temperatures
This material retains strength and toughness at moderately elevated temperatures, making it suitable for high-heat industrial and aerospace applications.
Materials We Offer
17-4PH (UNS S17400): Precipitation-hardened martensitic stainless steel offering excellent strength, corrosion resistance, and good mechanical properties up to 600°F.
Why Choose System 22?
At System22, we specialize in high-performance alloys like 17-4PH to support demanding applications that require strength, durability, and corrosion resistance. Our team ensures every component is produced to the highest standards for industries such as aerospace, medical, defense, and energy.
Whether you're sourcing standard fasteners or custom-engineered solutions, our expertise in heat-treated and high-strength materials allows us to deliver reliable, cost-effective results.
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Ready to explore how 17-4PH stainless steel can benefit your next project? Contact System22 today to speak with a specialist and get expert guidance.
Choose System22 for fasteners and components that deliver performance, longevity, and confidence.